Did you know you could use the juice from a lemon to write a secret message? Materials: Instructions: STEP 1: Squeeze the lemon juice into the plate. STEP 2: Dip the cotton swab into the lemon juice.
EFFINGHAM COUNTY, Ga. (WTOC) - In this Summer Science experiment students at Effingham College and Career Academy show us how to create invisible ink using a lemon. - When the lemon juice is heated a ...
The CIA released previously classified World War I-era documents Tuesday, and most had to do with invisible ink. (However, in Peter Finn's story about invisible ink, the weirdest method of passing ...
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